Table 5. Calculated N-S ranges, shifts and estimated importance values
due to GISS and GFDL model forecasts.
Scores of -99 indicate the species is projected to become absent in
the United States, while a score of 208 indicates
the species abuts the Canadian border and a score of 70 indicates
the species abuts the Gulf of Mexico.
See Figure 1 for approximate locations of the row numbers indicated;
each row corresponds to 10 km south to north.
| Southern optimum | | | | Northern optimum | | | | Latitudinal optimum | | | | IV at optimum latitude |
| Species | FIA | Pred. | GISS | GFDL | FIA | Pred. | GISS | GFDL | FIA | Pred. | GISS | GFDL | FIA | Pred. | GISS | GFDL |
| Abies balsamea | 191 | 135 | 199 | -99 | 208 | 208 | 204 | -99 | 200 | 180 | 202 | -99 | 4.8 | 5.4 | 4.0 | -99 |
| Acer negundo | 71 | 76 | 76 | 76 | 208 | 208 | 208 | 208 | 145 | 144 | 144 | 144 | 11.0 | 6.0 | 6.0 | 6.0 |
| Acer pensylvanicum | 118 | 143 | 166 | 166 | 208 | 208 | 203 | 203 | 170 | 177 | 182 | 182 | 6.2 | 7.4 | 3.0 | 3.0 |
| Acer rubrum | 104 | 104 | 70 | 70 | 208 | 208 | 208 | 199 | 156 | 156 | 147 | 127 | 20.2 | 15.6 | 8.3 | 4.9 |
| Acer saccharinum | 95 | 118 | 76 | 76 | 208 | 208 | 208 | 208 | 161 | 167 | 163 | 159 | 12.8 | 13.0 | 14.6 | 14.8 |
| Acer saccharum | 120 | 110 | 148 | -99 | 208 | 208 | 208 | -99 | 164 | 161 | 183 | -99 | 16.2 | 12.8 | 10.0 | -99 |
| Betula alleghaniensis | 109 | 146 | 191 | -99 | 208 | 208 | 208 | -99 | 169 | 182 | 200 | -99 | 6.0 | 6.4 | 4.6 | -99 |
| Betula lenta | 120 | 144 | 157 | 157 | 202 | 208 | 208 | 208 | 164 | 173 | 184 | 184 | 8.5 | 9.1 | 8.1 | 7.4 |
| Betula papyrifera | 179 | 188 | -99 | -99 | 208 | 207 | -99 | -99 | 198 | 198 | -99 | -99 | 6.6 | 11.0 | -99 | -99 |
| Carpinus caroliniana | 70 | 70 | 70 | 70 | 206 | 205 | 191 | 208 | 138 | 147 | 128 | 139 | 4.9 | 5.9 | 4.6 | 4.6 |
| Carya cordiformis | 96 | 140 | 140 | 140 | 208 | 208 | 208 | 208 | 161 | 174 | 174 | 174 | 6.0 | 4.9 | 5.0 | 4.9 |
| Carya glabra | 86 | 129 | 153 | 153 | 191 | 179 | 179 | 179 | 152 | 150 | 165 | 165 | 6.5 | 6.7 | 5.8 | 5.8 |
| Carya ovata | 132 | 110 | 110 | 110 | 208 | 208 | 208 | 207 | 174 | 167 | 167 | 167 | 10.5 | 6.2 | 6.6 | 6.5 |
| Carya sp. | 73 | 73 | 82 | 81 | 201 | 204 | 208 | 206 | 133 | 130 | 137 | 140 | 10.3 | 8.6 | 9.3 | 8.3 |
| Carya tomentosa | 76 | 76 | 76 | 76 | 194 | 208 | 208 | 208 | 137 | 134 | 145 | 146 | 6.8 | 6.1 | 6.1 | 6.1 |
| Celtis laevigata | 70 | 70 | 70 | 70 | 134 | 128 | 208 | 208 | 99 | 97 | 143 | 139 | 12.7 | 20.1 | 21.7 | 14.0 |
| Celtis occidentalis | 85 | 113 | 140 | 140 | 208 | 208 | 208 | 208 | 156 | 160 | 174 | 178 | 14.7 | 10.0 | 39.6 | 44.2 |
| Cercis canadensis | 86 | 104 | 121 | 121 | 183 | 182 | 208 | 208 | 140 | 143 | 170 | 170 | 5.3 | 4.3 | 4.6 | 4.6 |
| Cornus florida | 70 | 70 | 89 | 89 | 201 | 186 | 201 | 197 | 129 | 124 | 145 | 143 | 8.7 | 8.0 | 8.4 | 8.3 |
| Crataegus sp. | 70 | 153 | 194 | 185 | 208 | 208 | 203 | 203 | 147 | 182 | 198 | 194 | 7.8 | 8.5 | 12.7 | 8.7 |
| Diospyros virginiana | 70 | 70 | 80 | 80 | 161 | 156 | 208 | 208 | 116 | 116 | 148 | 149 | 4.8 | 6.3 | 6.6 | 6.4 |
| Fagus grandifolia | 71 | 103 | 102 | 102 | 208 | 208 | 208 | 163 | 155 | 164 | 144 | 132 | 9.3 | 9.8 | 7.6 | 6.2 |
| Fraxinus americana | 71 | 70 | 70 | 70 | 208 | 208 | 208 | 208 | 156 | 163 | 159 | 160 | 10.7 | 11.1 | 9.8 | 10.1 |
| Fraxinus nigra | 150 | 181 | 185 | 185 | 208 | 208 | 208 | 208 | 185 | 195 | 196 | 196 | 6.8 | 7.2 | 7.7 | 7.5 |
| F. pennsylvanica | 70 | 70 | 70 | 70 | 208 | 208 | 208 | 208 | 145 | 137 | 140 | 140 | 15.0 | 10.4 | 11.5 | 11.8 |
| Fraxinus sp. | 70 | 70 | 70 | 70 | 157 | 170 | 170 | 170 | 117 | 118 | 122 | 117 | 5.4 | 3.6 | 4.1 | 3.5 |
| Gleditsia triacanthos | 74 | 81 | 81 | 81 | 203 | 197 | 206 | 206 | 150 | 164 | 173 | 173 | 7.7 | 6.9 | 14.1 | 14.3 |
| Ilex opaca | 70 | 111 | 99 | 99 | 161 | 160 | 147 | 147 | 117 | 134 | 123 | 123 | 7.2 | 10.7 | 6.2 | 6.2 |
| Juglans nigra | 110 | 70 | 70 | 81 | 207 | 198 | 208 | 208 | 167 | 135 | 140 | 150 | 8.5 | 5.5 | 21.5 | 27.8 |
| Juniperus virginiana | 70 | 85 | 70 | 70 | 208 | 208 | 208 | 208 | 151 | 150 | 139 | 139 | 13.5 | 8.3 | 12.6 | 13.7 |
| Liquidambar styraciflua | 70 | 70 | 70 | 70 | 173 | 173 | 202 | 205 | 114 | 118 | 128 | 132 | 18.6 | 18.3 | 13.0 | 13.6 |
| Liriodendron tulipifera | 74 | 92 | 94 | 94 | 189 | 208 | 208 | 208 | 134 | 141 | 142 | 142 | 9.3 | 9.8 | 9.0 | 8.4 |
| Maclura pomifera | 93 | 70 | 70 | 71 | 189 | 202 | 201 | 208 | 146 | 143 | 134 | 144 | 12.2 | 15.6 | 18.0 | 18.7 |
| Magnolia virginiana | 70 | 70 | 70 | 70 | 168 | 168 | 126 | 138 | 114 | 109 | 97 | 101 | 5.4 | 5.2 | 10.8 | 11.0 |
| Morus rubra | 95 | 144 | 144 | 144 | 206 | 201 | 197 | 201 | 162 | 173 | 169 | 173 | 10.1 | 16.9 | 20.1 | 16.9 |
| Nyssa aquatica | 70 | 77 | 77 | 77 | 139 | 138 | 138 | 138 | 105 | 103 | 103 | 103 | 6.4 | 8.2 | 7.3 | 7.3 |
| Nyssa biflora | 70 | 70 | 70 | 70 | 143 | 195 | 160 | 162 | 101 | 123 | 112 | 113 | 12.3 | 9.3 | 17.6 | 17.5 |
| Nyssa sylvatica | 70 | 70 | 70 | 70 | 191 | 177 | 204 | 204 | 132 | 122 | 132 | 132 | 7.0 | 5.3 | 6.6 | 5.4 |
| Ostrya virginiana | 73 | 80 | 80 | 80 | 208 | 208 | 208 | 205 | 143 | 164 | 147 | 153 | 6.7 | 9.3 | 8.9 | 16.0 |
| Oxydendrum arboreum | 81 | 83 | 99 | 99 | 163 | 152 | 175 | 175 | 119 | 119 | 137 | 137 | 6.7 | 6.1 | 10.0 | 9.6 |
| Pinus echinata | 70 | 70 | 70 | 70 | 168 | 129 | 190 | 191 | 108 | 103 | 121 | 120 | 11.7 | 13.2 | 16.7 | 17.7 |
| Pinus elliottii | 70 | 70 | 70 | 70 | 115 | 91 | 127 | 127 | 90 | 79 | 95 | 98 | 12.6 | 13.1 | 17.9 | 19.0 |
| Pinus palustris | 70 | 70 | 70 | 70 | 114 | 111 | 154 | 180 | 93 | 92 | 104 | 121 | 9.6 | 7.2 | 8.9 | 10.3 |
| Pinus resinosa | 157 | 176 | -99 | -99 | 208 | 208 | -99 | -99 | 185 | 194 | -99 | -99 | 7.5 | 6.9 | -99 | -99 |
| Pinus strobus | 104 | 104 | 104 | 104 | 208 | 208 | 208 | 208 | 156 | 155 | 156 | 156 | 10.4 | 10.7 | 15.2 | 15.5 |
| Pinus taeda | 70 | 70 | 70 | 70 | 153 | 153 | 171 | 176 | 109 | 110 | 112 | 121 | 35.4 | 35.2 | 41.0 | 36.9 |
| Pinus virginiana | 89 | 75 | 91 | 93 | 169 | 204 | 187 | 190 | 126 | 126 | 137 | 140 | 11.6 | 7.5 | 11.6 | 14.5 |
| Platanus occidentalis | 72 | 86 | 86 | 86 | 191 | 171 | 177 | 202 | 134 | 127 | 137 | 140 | 6.2 | 5.5 | 9.3 | 9.6 |
| Populus deltoides | 128 | 145 | 145 | 145 | 208 | 208 | 208 | 208 | 173 | 177 | 175 | 177 | 27.1 | 26.4 | 21.8 | 28.8 |
| Populus grandidentata | 152 | 135 | -99 | -99 | 208 | 208 | -99 | -99 | 183 | 185 | -99 | -99 | 6.6 | 9.0 | -99 | -99 |
| Populus tremuloides | 162 | 135 | 205 | -99 | 208 | 208 | 208 | -99 | 188 | 186 | 206 | -99 | 9.1 | 7.9 | 8.7 | -99 | -99 |
| Prunus serotina | 70 | 93 | 188 | -99 | 208 | 208 | 208 | -99 | 139 | 153 | 198 | -99 | 8.0 | 7.7 | 10.3 | -99 | -99 |
| Quercus alba | 70 | 70 | 70 | 70 | 145 | 141 | 182 | 182 | 107 | 104 | 121 | 120 | 5.3 | 5.3 | 5.0 | 5.2 |
| Quercus coccinea | 70 | 70 | 73 | 71 | 158 | 158 | 196 | 198 | 111 | 111 | 136 | 139 | 6.7 | 5.5 | 7.0 | 6.9 |
| Q. falcata var. falcata | 100 | 92 | 95 | 95 | 208 | 208 | 208 | 208 | 154 | 150 | 155 | 154 | 13.1 | 9.5 | 11.9 | 13.7 |
| Q. f. var. pagodaefolia | 92 | 92 | 99 | 99 | 201 | 204 | 198 | 196 | 146 | 143 | 147 | 145 | 7.0 | 5.3 | 5.5 | 8.1 |
| Quercus laurifolia | 70 | 70 | 70 | 70 | 116 | 113 | 131 | 138 | 91 | 90 | 105 | 107 | 6.3 | 6.5 | 10.8 | 10.9 |
| Quercus macrocarpa | 148 | 156 | 156 | 156 | 208 | 208 | 208 | 208 | 180 | 183 | 182 | 182 | 18.6 | 20.7 | 15.3 | 15.3 |
| Quercus marilandica | 70 | 74 | 79 | 90 | 171 | 159 | 208 | 208 | 119 | 115 | 150 | 146 | 7.5 | 8.8 | 10.2 | 12.6 |
| Quercus muehlenbergii | 105 | 106 | 127 | 127 | 200 | 173 | 208 | 208 | 149 | 147 | 170 | 170 | 6.9 | 7.9 | 8.3 | 8.4 |
| Quercus nigra | 70 | 70 | 70 | 70 | 154 | 120 | 154 | 171 | 103 | 92 | 108 | 117 | 8.5 | 9.0 | 9.4 | 9.9 |
| Quercus palustris | 123 | 133 | 173 | 172 | 204 | 191 | 190 | 190 | 162 | 162 | 181 | 180 | 7.9 | 7.3 | 8.1 | 8.9 |
| Quercus phellos | 70 | 70 | 70 | 70 | 151 | 128 | 191 | 208 | 108 | 94 | 129 | 135 | 5.2 | 7.1 | 8.1 | 7.9 |
| Quercus prinus | 93 | 93 | 89 | 89 | 204 | 187 | 208 | 208 | 142 | 145 | 155 | 152 | 12.1 | 13.8 | 12.9 | 12.8 |
| Quercus rubra | 110 | 106 | 109 | 137 | 208 | 208 | 208 | 208 | 161 | 157 | 172 | 172 | 8.6 | 6.5 | 5.7 | 4.6 |
| Quercus stellata | 74 | 74 | 77 | 86 | 175 | 157 | 208 | 208 | 120 | 115 | 146 | 146 | 13.6 | 9.9 | 27.4 | 42.3 |
| Quercus velutina | 105 | 93 | 109 | 109 | 208 | 208 | 208 | 208 | 156 | 151 | 163 | 154 | 10.0 | 6.8 | 7.5 | 11.0 |
| Robinia psuedoacacia | 87 | 106 | 106 | 106 | 207 | 198 | 206 | 198 | 153 | 151 | 151 | 146 | 6.5 | 9.4 | 9.4 | 9.6 |
| Salix nigra | 123 | 164 | 164 | 164 | 208 | 207 | 207 | 207 | 173 | 184 | 184 | 184 | 10.9 | 20.3 | 20.3 | 20.3 |
| Salix sp. | 70 | 70 | 70 | 70 | 207 | 123 | 122 | 122 | 129 | 98 | 94 | 94 | 9.3 | 13.2 | 14.7 | 14.7 |
| Sassafras albidum | 79 | 95 | 95 | 95 | 206 | 208 | 182 | 208 | 150 | 148 | 138 | 145 | 6.9 | 5.9 | 6.2 | 6.3 |
| Taxodium distichum | 70 | 70 | 70 | 70 | 123 | 78 | 108 | 121 | 88 | 73 | 88 | 90 | 4.2 | 5.0 | 17.1 | 15.5 |
| T. distichum var.nutans | 70 | 70 | 70 | 70 | 145 | 193 | 193 | 193 | 105 | 110 | 110 | 110 | 7.1 | 6.4 | 5.0 | 5.0 |
| Thuja occidentalis | 194 | 144 | -99 | -99 | 208 | 208 | -99 | -99 | 201 | 188 | -99 | -99 | 8.6 | 7.0 | -99 | -99 |
| Tilia americana | 110 | 150 | 182 | 175 | 208 | 208 | 205 | 205 | 165 | 179 | 193 | 190 | 7.0 | 6.6 | 13.5 | 16.6 |
| Tsuga canadensis | 109 | 109 | 128 | 128 | 208 | 208 | 208 | 208 | 159 | 159 | 189 | 189 | 7.8 | 6.3 | 9.3 | 9.8 |
| Ulmus alata | 74 | 70 | 70 | 70 | 145 | 146 | 208 | 208 | 105 | 108 | 136 | 144 | 9.2 | 6.8 | 11.5 | 16.7 |
| Ulmus americana | 83 | 70 | 70 | 70 | 208 | 208 | 208 | 208 | 149 | 141 | 141 | 140 | 13.5 | 10.9 | 10.6 | 10.7 |
| Ulmus rubra | 78 | 80 | 70 | 70 | 208 | 208 | 208 | 208 | 156 | 144 | 142 | 135 | 8.0 | 5.0 | 9.1 | 13.2 |
| Ulmus sp. | 76 | 73 | 70 | 70 | 206 | 206 | 206 | 206 | 137 | 138 | 131 | 131 | 6.7 | 8.9 | 8.9 | 8.9 |